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Word Problems: Adding Objects
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In this video, we will learn how to solve problems with numbers up to 10 to find the total when one or more objects are added to a group.
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Here’s a group of dinosaurs, and here are some more dinosaurs.
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How many dinosaurs are there altogether?
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First, let’s count how many dinosaurs there are in the group.
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One, two, three.
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And how many more dinosaurs are there?
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One, two.
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Now, let’s find out how many dinosaurs there are altogether.
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Let’s add the two dinosaurs to the three dinosaurs in the group.
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There’s one, two more.
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Now, we can count how many dinosaurs we have altogether.
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One, two, three, four, five.
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Three and two is five.
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We had three dinosaurs to begin with.
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We added two more to the group, which makes five dinosaurs altogether.
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To write this as an addition sentence, we would write three plus two equals five.
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Three and two more makes five altogether.
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We can use models to help us solve addition problems.
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To help us find out how many cookies there are altogether, we could use some counters to help.
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Let’s count the star-shaped cookies.
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One, two, three.
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Now, let’s count the gingerbread cookies.
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And we can use a counter to represent each cookie.
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One, two, three, four.
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If we place all of the counters into the ten frame, we can see how many counters there are altogether.
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One, two, three, four, five, six, seven.
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Three and four is seven.
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Three plus four equals seven.
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If we have three cookies and add four more, we will have seven cookies altogether.
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Let’s practice adding more to a group.
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There were two chicks in a nest.
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Then, two more hatched.
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How many chicks are in the nest?
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Fill in the box.
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Two chicks and two more makes what?
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Write the numbers in the addition sentence.
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What plus what equals what?
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We know there are two chicks in the nest and then two more hatched.
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We have to work out how many chicks there are altogether and write the number in the box.
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We could use counters and a ten frame to help us find the number of chicks Altogether.
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There were two chicks in the nest to begin with.
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Then, two more hatched.
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How many counters are there in our ten frame altogether?
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There are four.
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Two chicks and two more makes four.
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Now, we need to write the numbers in the addition sentence.
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We know that there were two chicks in the nest to begin with.
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And then, two more hatched.
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And there are four chicks altogether.
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The addition sentence which shows this problem is two plus two equals four.
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There are seven apples and two more apples.
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How many apples are there altogether?
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Tip: use blocks or counters to make a model.
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Let’s use blocks to help us solve this problem.
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We know there are seven apples to begin with and then we add two more.
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Let’s start by using seven cubes to show the seven apples we have to start with.
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One, two, three, four, five, six, seven.
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We have seven apples to begin with, but we need to add two more.
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One more than seven is eight.
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And two more than seven is nine.
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Seven apples and two more apples is nine.
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There are nine apples altogether.
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Seven plus two equals nine.
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What have we learned in this video?
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We’ve learned how to model addition problems to help us find the total when we add more objects to a group.
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We’ve also learned how to write addition sentences using the plus and the equal symbol.
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Three plus two equals five.